Rebel Foods Software Engineer Interview Questions and Answers

There are 2 questions Both are average everyone can do.

Q1. Left view of Binary tree
Ans. 
Left view of Binary tree is the set of nodes visible when the tree is viewed from the left side.
• Traverse the tree level by level from left to right

• Keep track of the first node encountered at each level

• Example: For a tree with root node A and left children B and C, the left view would be [A, B]
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4 DSA questions only pseudo codes were asked

Q1. Past experience, database and projects, Language specific if python or NodeJs
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Q2. Javascipt fundamentals
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Q1. 2 DSA question medium leetcode
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Q1. 1 Dsa question and about projects
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Q1. Unique Paths (2d-dp)
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Q2. Flip any rows or columns at any time to make the sum of gird cells ofa provided square in a matrix should be minimum
Ans. 
To minimize the sum of grid cells in a square matrix, flip rows or columns as needed.
• Identify the rows or columns with the highest values and consider flipping them to reduce the sum

• Try different combinations of flipping rows and columns to find the minimum sum

• Consider using dynamic programming or backtracking to efficiently explore all possible combinations
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Nice interview experience with easy questions

Q1. What are your projects
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Q2. What is the experience in tech
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1. PEAK ELEMENT QUESTION.
2. COIN DENOMINATION

Hackerrank LeetCode 2 Hard questions and 1 medium

Round duration - 60 minutes
Round difficulty - Medium

This round was easy for me because this round only has Basic Math, OS, Programming and English Grammar questions.
There were also two easy coding problems.

Q1. 
Prime Numbers within a Range
Given an integer N, determine and print all the prime numbers between 2 and N, inclusive.
Input:
Integer N
Output:
Prime numbers printed on separate lines
Example:
Input...read more
Ans. 
Generate and print all prime numbers between 2 and N, inclusive.
• Iterate from 2 to N and check if each number is prime

• Use a helper function to determine if a number is prime

• Print each prime number on a new line
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Q2. 
Form a Triangle Problem Statement
You are given an array of integers ARR with a length of N. Your task is to determine whether it's possible to construct at least one non-degenerate triangle using the val...read more
Ans. 
Check if it's possible to form a non-degenerate triangle using the given array elements as sides.
• Iterate through each test case and check if the sum of any two sides is greater than the third side to form a triangle.

• If the above condition is met for any combination of sides, return 'YES'; otherwise, return 'NO'.
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Round duration - 45 minutes
Round difficulty - Medium

This was interview round where one indiamart senior lead engineer was interviewer. Initially I was nervous but interviewer was very gentle so I was very comfortable at the middle of interview. Interview was based on my resume and some basic problem solving questions.

Q1. 
Remove Character from String Task
Given a string str and a character X, your task is to create a function that removes all occurrences of X from the given string.
If the character X is not found in the s...read more
Ans. 
Create a function to remove all occurrences of a given character from a string.
• Iterate through the string and build a new string excluding the specified character.

• Use string manipulation functions to remove the character efficiently.

• Handle the case where the character is not found in the string.

• Return the updated string after removing all occurrences of the character.
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